Genus:
Cell body short, radiate in shape; apical view of the cell, triangular, polygonal,
ellipsoidal or spindle-shaped; zygospores formed outside of mother cells
(Illustrations of The Japanese Fresh-water Algae, 1977)
Subgenus: lacks arm-like projections
(Illustrations of The Japanese Fresh-water Algae, 1977)
Species:
Similar species -->>S. connatum;
Staurastrum lunatum Ralfs (Granuliformes) ??,
cell body 29 μm long, ?? μm wide, L/W=, isthmus 12 μm wide,
x 640, Maimeno-ike (pond), Norikura highland, Azumi, Matsumoto city (formerly Azumi village), Nagano Pref., Japan, June 8, 2006 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
Images of collecting locality:
Maimeno-ike (pond), Norikura highland, Azumi, Matsumoto city (formerly Azumi village), Nagano Pref., Japan, June 8, 2006 by Y. Tsukii